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While I'm here, update NDPDispatcher.OnDuplicateAddressDetectionStatus to
take a DADResult and rename it to OnDuplicateAddressDetectionResult.
Fixes #5606.
PiperOrigin-RevId: 360965416
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The only user is in (*handshake).complete and it specifies MaxRTO, so there is
no behavior changes.
PiperOrigin-RevId: 360954447
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clientEP.Connect may fail because serverEP was not listening.
PiperOrigin-RevId: 360780667
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One of the preparation to decouple underlying buffer implementation.
There are still some methods that tie to VectorisedView, and they will be
changed gradually in later CLs.
This CL also introduce a new ICMPv6ChecksumParams to replace long list of
parameters when calling ICMPv6Checksum, aiming to be more descriptive.
PiperOrigin-RevId: 360778149
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(*os.PathError).Timeout does the same thing.
PiperOrigin-RevId: 360756784
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PiperOrigin-RevId: 360732928
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Changes the neighbor_cache_test.go tests to always assert UpdatedAtNanos.
Completes the assertion of UpdatedAtNanos in every NUD test, a field that was
historically not checked due to the lack of a deterministic, controllable
clock. This is no longer true with the tcpip.Clock interface. While the tests
have been adjusted to use Clock, asserting by the UpdatedAtNanos was neglected.
Fixes #4663
PiperOrigin-RevId: 360730077
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This validates that struct fields if annotated with "// checklocks:mu" where
"mu" is a mutex field in the same struct then access to the field is only
done with "mu" locked.
All types that are guarded by a mutex must be annotated with
// +checklocks:<mutex field name>
For more details please refer to README.md.
PiperOrigin-RevId: 360729328
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While I'm here, simplify the comments and unify naming of certain stats
across protocols.
PiperOrigin-RevId: 360728849
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- Removed (*testbench.Connection)(&conn) like casts
- Removed redundant definition of Drain, Close and ExpectFrame
PiperOrigin-RevId: 360727788
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The syscall package has been deprecated in favor of golang.org/x/sys.
Note that syscall is still used in the following places:
- pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities
are not yet available in golang.org/x/sys.
- syscall.Stat_t is still used in some places because os.FileInfo.Sys() still
returns it and not unix.Stat_t.
Updates #214
PiperOrigin-RevId: 360701387
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Add reverse operation to mitigate that just enables
all CPUs.
PiperOrigin-RevId: 360511215
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PiperOrigin-RevId: 360491700
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Prevent the situation where callers to (*stack).GetLinkAddress provide
incorrect arguments and are unable to observe this condition.
Updates #5583.
PiperOrigin-RevId: 360481557
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io.Reader.ReadFull returns the number of bytes copied and an error if fewer
bytes were read.
PiperOrigin-RevId: 360247614
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There is a short race where in Write an endpoint can transition from writable
to non-writable state due to say an incoming RST during the time we release
the endpoint lock and reacquire after copying the payload. In such a case
if the write happens to be a zero sized write we end up trying to call
sendData() even though nothing was queued.
This can panic when trying to enable/disable TCP timers if the endpoint had
already transitioned to a CLOSED/ERROR state due to the incoming RST as we
cleanup timers when the protocol goroutine terminates.
Sadly the race window is small enough that my attempts at reproducing the panic
in a syscall test has not been successful.
PiperOrigin-RevId: 359887905
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Changes the neighbor_entry_test.go tests to always assert UpdatedAtNanos.
This field was historically not checked due to the lack of a deterministic,
controllable clock. This is no longer true with the tcpip.Clock interface.
While the tests have been adjusted to use Clock, asserting by the
UpdatedAtNanos was neglected.
Subsequent work is needed to assert UpdatedAtNanos in the neighbor cache tests.
Updates #4663
PiperOrigin-RevId: 359868254
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Converts entryTestLinkResolver and testNUDDispatcher to use the embedded
sync.Mutex pattern for fields that may be accessed concurrently from different
gorountines.
Fixes #5541
PiperOrigin-RevId: 359826169
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Adds helper functions for transitioning into common states. This reduces the
boilerplate by a fair amount, decreasing the barriers to entry for new features
added to neighborEntry.
PiperOrigin-RevId: 359810465
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Also increase refcount of raw.endpoint.route while in use.
Avoid allocating an array of size zero.
PiperOrigin-RevId: 359797788
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Without this change, the error produced is quite useless:
--- FAIL: TestZeroWindowProbeRetransmit (11.44s)
tcp_zero_window_probe_retransmit_test.go:81: expected a probe with sequence number 824638527212: loop 5
FAIL
PiperOrigin-RevId: 359796370
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Use maybeSendSegment while sending segments in RACK recovery which checks if
the receiver has space and splits the segments when the segment size is
greater than MSS.
PiperOrigin-RevId: 359641097
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- open flags can be different on different OSs, by putting SetNonblocking into
the posix_server rather than the testbench, we can always get the right value
for O_NONBLOCK
- merged the tcp_queue_{send,receive}_in_syn_sent into a single file
PiperOrigin-RevId: 359620630
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Prevents the following deadlock:
- Raw packet is sent via e.Write(), which read locks e.mu
- Connect() is called, blocking on write locking e.mu
- The packet is routed to loopback and back to e.HandlePacket(), which read
locks e.mu
Per the atomic.RWMutex documentation, this deadlocks:
"If a goroutine holds a RWMutex for reading and another goroutine might call
Lock, no goroutine should expect to be able to acquire a read lock until the
initial read lock is released. In particular, this prohibits recursive read
locking. This is to ensure that the lock eventually becomes available; a blocked
Lock call excludes new readers from acquiring the lock."
Also, release eps.mu earlier in deliverRawPacket.
PiperOrigin-RevId: 359600926
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PiperOrigin-RevId: 359591577
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